41256666 has 24 divisors (see below), whose sum is σ = 97516224. Its totient is φ = 12501960.

The previous prime is 41256661. The next prime is 41256697. The reversal of 41256666 is 66665214.

It is a happy number.

It is a super-2 number, since 2×41256666² = 3404224978871112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 41256666.

It is not an unprimeable number, because it can be changed into a prime (41256661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103986 + ... + 104381.

It is an arithmetic number, because the mean of its divisors is an integer number (4063176).

Almost surely, 2^41256666 is an apocalyptic number.

41256666 is an abundant number, since it is smaller than the sum of its proper divisors (56259558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41256666 is a wasteful number, since it uses less digits than its factorization.

41256666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208386 (or 208383 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 41256666 is about 6423.1352157650. The cubic root of 41256666 is about 345.5397725713.

The spelling of 41256666 in words is "forty-one million, two hundred fifty-six thousand, six hundred sixty-six".